BACKGROUND Assessment of soil arsenic (As) bioavailability may profoundly affect the extent of remediation required at contaminated sites by improving human exposure estimates. Because small adjustments in soil As bioavailability estimates can significantly alter risk assessments and remediation goals, convenient, rapid, reliable, and inexpensive tools are needed to determine soil As bioavailab...

The current interest in polyphenols has been driven primarily by epidemiological studies. However, to establish conclusive evidence for the effectiveness of dietary polyphenols in disease prevention, it is useful to better define the bioavailability of the polyphenols, so that their biological activity can be evaluated. The bioavailability appears to differ greatly among the various phenolic co...

The pharmacokinetics of olanzapine are linear and doseproportional within the approved dosage range from 1 mg up to 20 mg. Olanzapine is well absorbed following oral administration in both fed and fasted states . Food does not affect the rate or the extent of olanzapine absorption. Time of peak concentration ranges from 2-7 h [4,5]. Olanzapine is extensively distributed throughout the body, bin...

Azithromycin, 9-Deoxo-9a-aza-9a-methyl-9a-homoerythromycin a dihydrate, is a semi-synthetic 15-membered azalide antibiotics derived from erythromycin. Its chemical structure differs from that of erythromycin by the insertion of methyl-substituted nitrogen at position 9a in the lactone ring. This modification results in the improved acid stability associated with more reliable and greater oral b...

The demand to get a tool for biological parameter estimation of new compounds for clinical application, supports the postulation of predictive models as an alternative to conventional classical assays being no necessary the use of experimentation in animals. A lot of in vitro systems, including the use of physicochemical parameters of drugs, the permeability data from cell culture line and the ...

Breast cancer is the most fatal form of cancer for female population worldwide. National Cancer Institute (NCI) estimates 226,870 females and 2,190 males to be diagnosed with breast cancer in the United States by the end of 2012. The estimated death toll for this year includes 39,510 females and 410 males, as reported by NCI. Statistics state that 1 in every 8 females will be diagnosed with bre...